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US 4,298,868 AGranted
Electronic display apparatus
OwnerJohn R. Spurgeoninventor
Life of this patent
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Abstract
An apparatus is provided to produce an optical illusion of variable geometric patterns. The apparatus may be used as an electronic toy, display or kinetic art mural, as well as a demonstration aid in geometry, physics or physiology. An array of light emitting diodes mounted on a rotating disk or carrier is selectively activated to control the geometric patterns formed.
Claims9
An electronic display apparatus, comprising:
- (a) a disk member;
- (b) a plurality of light emitting means mounted with said disk member;
- (c) means for rotating said disk member;
- and
- (d) electronic control circuit means for selectively activating said plurality of light emitting means to selectively form differing visual images for viewing, said circuit means comprising:
- (1) input means for forming an electronic control signal defining the pattern, position, size and shape of the visual images to be formed as specified by a user;
- and
- (2) decoder means for decoding the electronic control signals to selectively activate said plurality of light emitting means to form the specified visual images.
5 more elements
Dependencies are inferred from the claim text.